2-in-1 Bluetooth V4.0 Transmitter Receiver Wireless Adapter With 3.5mm Audio Jack - Black Gadgets & Auto Parts overload alarm function (over power

overload alarm function (over power alarm threshold

com/wiki/Edge_Breakout_for_micro:bit Packing List Edge Breakout for micro:bit x1

4/30000 Packing List 1 x W5100 Network Control Switch 5V Network Relay Module

Can be used as a normal pen

2-in-1 Bluetooth V4.0 Transmitter Receiver Wireless Adapter With 3.5mm Audio Jack - Black Gadgets & Auto Parts overload alarm function (over powerBluetooth version Bluetooth V4. 0 Supporting agreement A2DP Working band 2. 402GHz 2. 480GHz Reception sensitivity 95dBm <0. 1%BER Built in battery 300mAh Charging current 200 300mA Charging time About 2 hours Battery life 6H Bluetooth distance >10M(open space) Charging mode Micro USB 5V 0. 5A Output connection mode 3. 5MM stereo interface Compatibility Android system, IOS system's mobile phone, tablet and other Bluetooth devices, and audio devices